EP0220227B1 - Herstellung von ziegeln oder fliesen - Google Patents

Herstellung von ziegeln oder fliesen Download PDF

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Publication number
EP0220227B1
EP0220227B1 EP19860902452 EP86902452A EP0220227B1 EP 0220227 B1 EP0220227 B1 EP 0220227B1 EP 19860902452 EP19860902452 EP 19860902452 EP 86902452 A EP86902452 A EP 86902452A EP 0220227 B1 EP0220227 B1 EP 0220227B1
Authority
EP
European Patent Office
Prior art keywords
plates
tiles
slabs
dividers
castable material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19860902452
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English (en)
French (fr)
Other versions
EP0220227A1 (de
Inventor
Charles Kenneth Colley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Abraham Ltd
Original Assignee
Robert Abraham Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB858509920A external-priority patent/GB8509920D0/en
Priority claimed from GB868600455A external-priority patent/GB8600455D0/en
Application filed by Robert Abraham Ltd filed Critical Robert Abraham Ltd
Priority to AT86902452T priority Critical patent/ATE54871T1/de
Publication of EP0220227A1 publication Critical patent/EP0220227A1/de
Application granted granted Critical
Publication of EP0220227B1 publication Critical patent/EP0220227B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
    • B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
    • B28B5/021—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of definite length
    • B28B5/025—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of definite length the moulds or the moulding surfaces being divided by separating walls and being continuously fed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/478—Endless belt or chain tool carrier

Definitions

  • This invention relates to apparatus for making tiles or slabs from castable material particularly concrete.
  • DE-C-436844 describes a stamping machine which provides for longitudinal profiling of material deposited into longitudinally movable carriages. Those carriages are of fixed length with apparently no provision for dividing their length to produce selected sizes of product.
  • apparatus for making tiles or slabs ranging from roofing tiles to paving slabs from castable material, typically concrete, wherein a sequence of platens on an endless conveyor affords a substantially continuous surface onto which are laid plates and from which transverse dividers are extensible between those plates to sever or at least partially sever a layer of said castable material charged and compacted onto the plates characterised in that there are a number of available positions for said transverse dividers and that dividers are operable on a selective basis relative to said available positions to produce tiles or slabs of a size defined by the dividers so selected.
  • Preferred embodiments hereof specifically involve providing each platen with a medially disposed additional divider, in particular preferred embodiments actually at positions dividing the lengths of two consecutive platens in the ratios 2:1 and 1:2 respectively. Then, if the additional dividers are operable as an alternative to the platen-edge-associated divider between such two consecutive platens, three smaller but equal length tile or slab sizes will be available instead of two larger but equal length sizes. Doing so by selective installation/removal of dividers is of self-evident flexibility of application. An alternative would be to have two cam tracks each selectively put into its operative configuration and each associated with a different set of dividers, which sets may, of course, overlap.
  • Another aspect of the invention concerns a drilling stage for the cast, compacted, and at least partially severed, tiles or slabs, which drilling stage comprises an array of selectively operable drill heads disposed in positions corresponding to each possible position for holes required by a range of sizes of tile or slab to be produced, and means responsive to specification of a particular said size in order to select only a particular drill head or heads for operation.
  • Such arrangement of the drilling stage represents a very substantial improvement on previous use of one or more movable drill heads that had to be set up for position at each change of size for produced tiles or slabs, at least in terms of saving time and giving full compatibility with the desired flexibility of operation and has particular application to operation with an extended range, even mix of, sizes of tiles or slabs.
  • the first or main charging stage includes means for positively discharging castable material, particularly concrete, onto the plates of the conveyor before or into associated compaction means, a suitable positive feed comprises a bladed roller effective to produce a continuous stream of concrete to a position below a compaction roller, preferably similar to the first roller of the prior apparatus, both such rollers conveniently being in the outfeed from a hopper for the concrete.
  • a particularly preferred positive feed roller has at its blading, an helical formation usually as a rib or fin thereon and then further preferably with a taper of the roller related to the action of the helical blading so as to counteract any tendency differentially to feed material out of the hopper outlet.
  • a particularly effective such roller uses only light "blading" on a roller that can then be of relatively small diameter, say 40 to 60 mm, compared with what would otherwise be required, and with consequent avoidance of very high bending forces.
  • Typical helical ribbing projects about 5 to 15 millimetres (or grooving of similar indentation), say at a pitch of about 100 to 250 millimetres, on a roller that has a slight taper substantially less than 1 degree, preferably 4 degree or less, from the end to which the helical blading tends to translate fed material, say tapering of the order of to 1 millimetre in radius per 100 millimetres length, and with such roller axis canted by a corresponding amount to give a bottom surface substantially parallel with the intended tile surface and a variation of peripheral speed that substantially counteracts translation of fed material along the roller.
  • the preferred provision for positive feed goes beyond anything achievable by our previous apparatus and, furthermore, permits the use of clean plates, even plates oiled or otherwise treated to promote ready release of cast tiles or slabs, and can achieve a smoother finish to their undersides. Hitherto, use of such plates even at lesser speeds of production give rise to concrete release/charging of such uneveness as to lead to faulty tiles or slabs, even holes therein. There is, of course, associated compaction of the positively charged concrete, and a much stronger slab or tile can be produced due to the capability of the positive charge/compaction system to work on much less wet concrete mixes.
  • Figure 1 is a side elevation of a machine
  • the tile or slab making machine has an endless conveyor 10 running about horizontally spaced drive/guide rollers 12, 14.
  • the endless conveyor 10 travels in the direction C when driven and carries a plurality of platens 20 in end-to-end succession so that same will traverse upper and lower runs of the conveyor 10 and go about its end rollers 12, 14.
  • the platens 20 go through successive stations for plate dispensing (22), concrete charging (24), finish layer charging (26), consolidation (28), drilling (30), cutting (32), and charged plate removal (34).
  • bases 35 of the platens 20 have upstanding sides 36 (see Figure 2) but no ends so that concrete charged at 24 will be in a continuous layer from platen to platen, actually on plates 37 deposited on the platen at 22 and covering holes 38 in the platen bases 35 through which ejection- aiding plungers 39 are operable at the removal station 34.
  • spaces 40 are shown for divider plates 41 between successive platens 20, and the divider plates are shown with extensions 42 at each side that carry rollers 43 for operation by a cam-track 44 in raising and lowering the divider plates 41. In their lowered position, the tops of the divider plates 41 do not obtrude above the charging plates 37, and may be substantially level with the platens 20.
  • dispensing of the plates 37 is triggered by trips operated by the side extensions 42 of the divider plates 41.
  • the concrete charging station 24 is in the form of a hopper having at its exit 46 a positive discharge means in the form of a roller 47 equipped with suitable blading 48 and rotated in the direction of the arrow 47A.
  • a helix of appropriate pitch is suitable for the blading 48, see 148 in Figure IA for roller 147.
  • the helical blading is an upstanding rib 148 extending about 6.5 mm above the roller surface and with a pitch of about 150 mm.
  • the roller itself has a slight taper, actually about 3 mm radius reduction in a roller length of 900 mm, and has a corresponding cant of the drive axis 147A so that its lower surface 147L is substantially parallel with the platen surface, i.e. also with the intended concrete surface.
  • a small diameter roller can be used, for example 40 mm to 60 mm for Figure 2.
  • the larger end of the roller 147 is at the side of the machine to which its slight tendency to translate fed concrete is operative thereby to present progressive increase of peripheral speed to take fed concrete away without unwanted build-up at that end, and without interference to smooth and, regular flow.
  • an helical groove or grooves could be used instead of projecting blading (rib).
  • a smooth positive flow of concrete onto the plates 37 is assured by the bladed roller 147 whose speed can be varied according to the desired or prescribed rate of production for the machine and in a manner suitably interlocked with the speed at which the conveyor 10 is driven.
  • a compacting roller 49 also rotated in the direction of the arrow 49A and serving to exert a prescribed downward pressure on the concrete so as to produce a suitably strong, homogeneous, compacted tile or slab substrate.
  • a doctor blade 50 is shown associated with the compacting roller 49 to clean excess concrete therefrom.
  • Another similarly rotating roller 51 thereafter is operative both to further condition the surface of the compacted charged concrete substrate and to serve as an abutment for the divider plates 41 which are lifted successively by the cam-tracks 44 to their raised position against the roller 51 to sever the concrete substrate between the plates 37. It is not necessary for the divider plates 37 actually to reach the surface of the roller 51, so long as the division made is readily finally broken, say at 31 in Figure 1 by a transverse cutter blade.
  • FIG 1 shows, diagrammatically, only divider plates 41 between the platens 20.
  • the platens 20 actually have provision for intermediate divider plates, see slot or space 40' and divider plate 41' with associated side extensions 42' carrying wheels or rollers 43'.
  • the slots or spaces 40' as shown, divide consecutive platens 20A, 20B in the ratios 2:1 and 1:2 in the direction of travel of the conveyor 10, thereby enabling manufacture of slabs or tiles of two or three different equal lengths by selective operation of the divider plates 41, 41', and loading of correspondingly sized charging plates 37. That selection is conveniently done by appropriate removal/emplace- ment of divider plates 41, 41', which enables use always of the same cam-tracks 44 to each side of the conveyor 10.
  • cam-tracks 44A and 44B At each side of the conveyor 10, see Figures 3A and 3B, and for each cam-track itself to be selectively enabled.
  • rollers 43 on every divider plate 41 between platens engage one cam-track 44A and rollers 43' on every intermediate divider plate 41' engage on the other cam-track 44B.
  • alternate ones of the divider plates 41 also have further rollers 43" engaging the cam-track 44B.
  • the rollers 43 and 43', 43", respectively, and the corresponding cam-tracks 44A, 44B will be at different spacings and/or heights relative to sides of the conveyor 10.
  • Selective cam-track selection is indicated by alternative full lines and dashed lines in Figure 3A with means for achieving same by pushing/pull- ing part thereof having inclined parts cooperating with rollers.
  • the secondary charging station 26 for any desired finish or facing layer, such as sand, is shown as another hopper in the same system as the concrete charging hopper, but could be physically separate if desired. That secondary charging station 26 is also preferably provided with positive discharge means again shown as a rotating roller 52 with suitable blading 53, and is further associated with a counterrotating roller 54 that will skid on the surface of the concrete to assure even distribution of sand thereon. A doctor blade 55 is shown associated with the spreading roller 54.
  • the finish or facing layer is consolidated with the concrete substrate by a series of rollers 56 bearing thereon at station 28 in a carriage 57 that is reciprocated to-and-fro in the direction of travel of the conveyor 10. Downward pressure is required of the carriage 57 and rollers 56 for consolidation purposes, but need not be as great as was required hitherto.
  • the rollers 56 will bear on the concrete via an elastomeric compression sheet, which can apply a particular pattern if same is required to be imposed on the finished or faced surface.
  • the next stage is the drilling stage 30 where holes are made in the slabs or tiles at positions appropriate to their size and type.
  • a plurality of drills 60 are shown, one for each possible position of several sizes and types of tile or slab, preferably corresponding to all normal production options for the machine.
  • the drills 60 are each indicated as spring biassed, see 61 in Figure 4B, for cushioned engagement with the plates 37.
  • the drills 60 are carried on drill frames 62 themselves movable down pillars 63 by actuator 64 against spring bias 65. Except when operated by actuators 64, the drill frames 62 and drills 60 are returned from their drilling positions.
  • the actuators 64 may comprise pneumatic rams one each for plural drill franes 62, see subscripts A-E. If desired, depression of the drills may be accompanied by application of a turning drive say by selectively operable air motors. Additionally or alternatively one or more frames like 62 may carry cutting blades for example that shown at 31 in Figure 1.
  • the pillars 6 3 are shown extending upwardly from sides of a main frame 66 that is reciprocable in the direction of the conveyor 10, see trunions 67 and rollers 68 relative to tracks 69 between beams 70A, 70B at both sides of the overall machine frame.
  • the main frame 66 is picked up by each divider plate 41, 41' in turn, conveniently by their extensions 42, 42' or, as shown, their wheels or rollers 43, 43' via contact with wheel or wheels 71 on a pick-up arm or arms 72.
  • such arm 72 has a wheel or roller 72R in a rising track 73 on the machine frame, see at 70A, so as to raise that arm 72 through a block or guide 74 on the main frame 66 as the latter is moved in the direction of the conveyor 10 until roller/wheel engagement at 71, 72 is lost, whereupon the main frame 66 is automatically returned by means not shown and is then ready to be pushed up by the next divider plate 41, 41'.
  • the pick-up arm 72 will operate a microswitch in the block or guide 74 serving to operate one or more of the actuators 64.
  • the microswitch see 75 in Figure 5, may be interlocked with tile type specifying means, such as further switches 76 via suitable interconnections or logic at 77 to determine an appropriate one or more of the actuators 64 for operation over lines 78A-78E.
  • any drill frame 62 descends to push its drills 60 into the cast tiles or stabs below it.
  • Those drills 60 are shown guided through holes in an angle member 80 itself supported at 81 on posts 82 slidable through the drill frame 62 against spring loading 83 affording further cushioning relative to the cast tiles or slabs and thus further facilitating operation relative to a variety of thicknesses thereof.
  • Undersides of the angle members 80 have pierced drill pads 84 that first engage the tiles or slabs.
  • angle member or members 80 could alternatively, even additionally, carry cutting blades (not shown) and serve simply a transverse cutting function if without drills 60, and same may be controlled along with the drill frames 64 from extension of the circuitry 77 of Figure 5, see dashed at 85.
  • machines hereof most conveniently make pluralities of slabs or tiles side-by- side actually charged in one homogeneous layer that is first divided transversely of the conveyor 10 by the divider plates 41, 41', if necessary completed at 31 or within the drilling station 30, and then slit in the other direction by blades 86 at the station 32.
  • the pneumatic rams 64 will operate corresponding sets of the drills 60 via frames 62 according to selection of tile type or size. If desired, of course, some of the drills 60 may be individually associated with controlled latches, or alternative frames 62 fitted simply over the pillars 63.
  • Pneumatic rams are preferred for operating the drills 60, at least partly because pressure is preferably applied wherever necessary throughout the machine by pneumatic means as it is inherently less “hard” than hydraulics or mechanical means unaccompanied by “soft” absorbers etc.
  • FIG 6 one practical arrangement is shown for controlling the various drives of the machine of Figure 1.
  • Individual motors are used for various parts and are given the same reference as the parts they drive, but subscripted M.
  • Each motor is shown with an individual potentiometer type control, subscripted P, for basic setting up and fine tuning of the machine, and conveniently available from well-known A.C. starter control units.
  • a basic requirement at setup is for the take-off conveyor at station 34 to run slightly faster than the main conveyor 10. Afterwards, however, speed setting will normally require proportionate changes at each of the controlled motors, see controller 90, which may be of A.C. inverter type, and dashed connection 91 to all motor control potentiometers.
  • main charge spreading and compression plain roller 49 and the cutting abutment roller 51 are shown sharing a common drive, which is normally convenient. It is, in fact, normally also convenient for the finish material charge roller 52 and the counter-rotating roller 54 also to share the same drive motor, hence sharing 54M etc. dashed in Figure 6.
  • the consolidation roller motor control is also shown dashed in Figure 6 as its resilient membrane is actually moved by the cast tiles or slabs and applied downward pressure on the frame 57 and a constant rate of movement of its rollers 56 may well be tolerable.
  • Figure 6 shows circuitry 92 responsive to type selection for applying individual variation at least to the finish material charging control 49, 51 P, the main speed control 90 to take account of overall constraints that may apply for particular types, and for the main charging roller 47.
  • the latter is shown via thickness control circuitry 93 which it may be useful to have individually, variable (shown conventionally). Additional connection is shown to the consolidation roller stage 28 as same may be applicable to using different resilient membrames say for pattern effects.
  • Special bent tiles e.g. for ridges, hips or valleys are readily made on the same machine, but preferably via special plates 37', see Figure 7, that are made of medially reduced thickness, see 101, so that the tile produced is of greater thickness medially, Actual bending can be done from the plate-side of the tile by dropping the finished side onto a sheet or flexible material, for which hessian will serve.
  • Such flexible material see 102 in Figure 8, is, advantageously according hereto, on two boards 103, 104 hinged to a tie 105 that limits the relative angular position attainable by the boards, preferably adjustably via preset pin holes 106.
  • the boards can be flat at placement of the tile or slab on the hessian and moved to the desired position during rolling (107) of the tile over its thickened part.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Claims (9)

1. Vorrichtung zum Herstellen von Ziegeln oder Fliesen, wie Dachziegel, Pflasterfliesen und dergleichen, aus einem gießbaren Material, insbesondere Beton, wobei eine Folge von Platten (20) auf einem Endlosförderer (10) eine im wesentlichen durchgehende Oberfläche ergibt, auf welche Platten (37) gelegt werden und von welcher zwischen diesen Platten Querteiler (41, 41') ausfahrbar sind, um eine Lage des gießbaren Materials zumindest teilweise zu durchtrennen, das auf die platten aufgebracht und verdichtet ist, dadurch gekennzeichnet, daß eine Anzahl verfügbarer Positionen für diese Querteiler (41, 41') vorhanden ist, und daß die Querteiler wahlweise in Bezug auf diese verfügbaren Positionen betätigbar sind, um Ziegel oder Fliesen einer Größe herzustellen, welche von den so gewählten Teilern definiert ist.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß sich die Positionen für die Teiler an jedem oder beiden Enden und Zwischenlagen in Bezug auf die Platten befinden.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Querteiler sich in Lagen befinden oder wahlweise in Lagen angeordnet werden können, wobei die Längen zweier aufeinanderfolgender Platten in den Verhältnissen 2:1 bzw. 1:2 unterteilbar sind.
4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine Bohrstation (30) für gegossene, verdichtete und wenigstens teilweise abgetrennte Ziegel oder Fliesen eine Reihe wahlweise betätigbarer Bohrköpfe aufweist, die in Lagen angeordnet sind, welche jeder möglichen Position für Löcher entsprechen, welche für einen Bereich von herzustellenden Ziegel- oder Fliesengrößen erforderlich sind, und daß eine Einrichtung auf eine Spezifikation einer besonderen Größe anspricht, um lediglich einen besonderen Bohrkopf oder besondere Köpfe für den Betrieb auszuwählen.
5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine Chargierstation (24) für das gießbare Material eine Einrichtung zum definierten Abgeben des gießbaren Materials auf die platten des Förderers einschließt, bevor sich eine zugeordnete Verdichtungseinrichtung (56) auf dieses gießbare Material absenkt.
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Zuführeinrichtung eine mit wendelförmig verlaufender Schaufel versehene Walze (47, 48) ist, welche konisch und gekerbt ist und deren Achse abgeschrägt ist, so daß ein kontinuierlicher, im wesentlichen gleichmäßiger Strom gießbaren Materials zu einer Lage unterhalb einer anderen Walze geschaffen ist.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß sich beide Walzen am Ausgang eines Trichters befinden und miteinander gekoppelte Antriebe aufweisen.
8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Vorsorge für eine gekoppelte Steuerung aller angetriebener Teile einschließlich der Zuführeinrichtung für das gießbare Material und der zugeordneten Druckwalzeneinrichtung und ähnlich für den Betrieb einer abschließenden Beschichtung, einer weiteren Komprimierstufe und eines Bohrvorgangs geschaffen ist, so daß eine Änderung der Gesamt-Betriebsgeschwindigkeit wirksam und zuverlässig erzielbar ist.
9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß für besonders gekrümmte Ziegel Platten hierzu mit Ausnehmungen versehen sind, so daß die sich ergebenden Gießteile im Bereich der beabsichtigten Krümmung dicker sind.
EP19860902452 1985-04-18 1986-04-15 Herstellung von ziegeln oder fliesen Expired - Lifetime EP0220227B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86902452T ATE54871T1 (de) 1985-04-18 1986-04-15 Herstellung von ziegeln oder fliesen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8509920 1985-04-18
GB858509920A GB8509920D0 (en) 1985-04-18 1985-04-18 Making tiles/slabs
GB8600455 1986-01-09
GB868600455A GB8600455D0 (en) 1986-01-09 1986-01-09 Tile-making apparatus

Publications (2)

Publication Number Publication Date
EP0220227A1 EP0220227A1 (de) 1987-05-06
EP0220227B1 true EP0220227B1 (de) 1990-07-25

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ID=26289140

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Application Number Title Priority Date Filing Date
EP19860902452 Expired - Lifetime EP0220227B1 (de) 1985-04-18 1986-04-15 Herstellung von ziegeln oder fliesen

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US (1) US4908217A (de)
EP (1) EP0220227B1 (de)
AU (1) AU5696686A (de)
DE (1) DE3672949D1 (de)
GB (1) GB2175840B (de)
WO (1) WO1986006019A1 (de)

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AU592279B2 (en) * 1987-05-22 1990-01-04 Intelhearts Co. Ltd. Method of producing a porous ceramic panel
NL8701601A (nl) * 1987-07-08 1989-02-01 Mosa Koninkl Bv Set vloertegels, werkwijze voor het vervaardigen van een vloertegel behorende tot de set en inrichting voor het uitvoeren van de werkwijze.
GB9022277D0 (en) * 1990-10-13 1990-11-28 Redland Eng Ltd Improvements in or relating to the manufacture of roof tiles
JP3300039B2 (ja) * 1992-07-03 2002-07-08 株式会社エーアンドエーマテリアル 繊維補強無機質硬化体の製造方法および製造装置
ES2128900B1 (es) * 1995-08-25 1999-12-16 Botella Antonio Garcia Maquina para fabricacion en continuo de baldosas y similares, de material moldeable.
IT1293176B1 (it) * 1997-04-15 1999-02-12 Marcello Toncelli Procedimento ed impianto per la fabbricazione di lastre in materiale ceramico.
US6530772B1 (en) * 2000-06-30 2003-03-11 Consolidated Minerals, Inc. System for making aerated concrete blocks having at least one passageway drilled therein
US6533970B1 (en) 2000-06-30 2003-03-18 Consolidated Minerals, Inc. Method for making aerated concrete blocks having at least one passageway drilled therein
MX2009010354A (es) * 2009-09-25 2011-03-25 Concreto W S A De C V Equipo de dosificacion y aplicación de poliuretano espumado en estructuras metalicas tridimensionales de paneles prefabricados.

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US1355619A (en) * 1919-11-24 1920-10-12 Bernard A Richards Block-molding machine
DE436844C (de) * 1925-03-20 1926-11-11 Gustav Huebner Stampfmaschine zur Herstellung von Formziegeln, insbesondere solchen aus Beton
US2315256A (en) * 1941-08-20 1943-03-30 United States Gypsum Co Punching and cutting machine
GB562961A (en) * 1942-12-02 1944-07-24 Edward David Bacheler Russell Improvements in or relating to the production of building members from plaster board
US2383736A (en) * 1943-09-11 1945-08-28 Johns Manville Apparatus and method for molding fibrocement sheets
US2562541A (en) * 1946-05-18 1951-07-31 Flam John Concrete block molding machine
US2566787A (en) * 1949-04-22 1951-09-04 Besser Mfg Co Stripping mechanism for block molding machines
DE1459349A1 (de) * 1963-03-06 1971-11-18 Sp K Bjuro Prokatdetal Verfahren und Anlage zur Herstellung von Eisenbetonplatten
US3257701A (en) * 1964-01-27 1966-06-28 Thomas O Brown Jr Tile machine
US3396952A (en) * 1967-03-10 1968-08-13 Allis Chalmers Mfg Co Apparatus and process for producing calcined phosphate flakes
US3843298A (en) * 1968-05-22 1974-10-22 Redland Tiles Ltd Apparatus for manufacturing finished products from continuously advancing layers
GB1302188A (de) * 1969-08-06 1973-01-04
FR2156457B1 (de) * 1971-10-20 1974-03-29 Peugeot & Renault
US4211524A (en) * 1978-10-10 1980-07-08 Allis-Chalmers Corporation Rolls for compacting mill

Also Published As

Publication number Publication date
AU5696686A (en) 1986-11-05
EP0220227A1 (de) 1987-05-06
GB8609414D0 (en) 1986-05-21
GB2175840B (en) 1990-01-24
GB2175840A (en) 1986-12-10
DE3672949D1 (de) 1990-08-30
US4908217A (en) 1990-03-13
WO1986006019A1 (en) 1986-10-23

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